一种宽频高增益的印刷偶极天线  

A Printed Dipole Antenna of Wideband and High Gain

作　　者：冯建杰 王玉峰 周军[1,2] 张光生 

机构地区：[1]中国电科第36研究所天馈技术研究室,嘉兴314033 [2]通信系统信息控制技术国家级重点实验室,嘉兴314033

出　　处：《微波学报》2010年第S1期157-160,共4页Journal of Microwaves

摘　　要：设计了一种具有高增益、H面宽波束的宽带印刷偶极天线。采用两元天线在E面组阵,通过E面波束宽度的压缩以获得较高的增益,同时保持了H面的宽波束特性;采用微带线馈电,以在较宽的频带内实现阻抗匹配,并且微带线馈电易于设计组阵时的合路网络,且便于结构加工。经过仿真优化,本文天线实现了0.85GHz～1.9GHz频带范围约75.6%的相对带宽内驻波比小于2;在0.95GHz～1.65GHz带宽约58.3%的相对带宽内增益大于9dBi。A printed dipole antenna is presented with wideband and high-gain.The high-gain property is obtained by an array formed by two dipole antenna in the E plane.Microstrip line is used for feeding the dipole antenna which convenient for achieving impendance matching and structure fabricating.After simulation and optimization,the designed antenna obtains the impedance bandwidth for VSWR<2 of 0.85GHz～1.9GHz with the relative bandwidth of 75.6%.Within the impedance bandwidth,bandwidth for gain>9dBi is from 0.95GHz to 1.65GHz with the relative bandwidth of 58.3%.

关 键 词：宽频带 高增益 宽波束 印刷偶极子 

分 类 号：TN821.4[电子电信—信息与通信工程]